曝光台 注意防骗
网曝天猫店富美金盛家居专营店坑蒙拐骗欺诈消费者
Hits
False alarm (Type I error)
Miss (Type II error)
Correct rejection
A project supported by AIRBUS and the CAAC
A project supported by AIRBUS and the CAAC
June 2007
Perception (3)
Concept of response criterion
A point on the hypothetical continuum as the
basis upon which a person makes a decision.
Beta: signal to noise ratio
A project supported by AIRBUS and the CAAC
June 2007
Perception (5)
Influencing the response criterion.
Sensitivity(d’)
Separation of signal and signal-plus-noise
distributions measured in standard deviations.
A project supported by AIRBUS and the CAAC
A project supported by AIRBUS and the CAAC
June 2007
Memory
Sensory storage
Definition : temporary storage mechanism that
prolongs the stimulus representation for a
short time after they have been removed.
Do not need attention.
Visual system: iconic storage, < 1 second
Auditory system: echoic storage, last few
seconds
A project supported by AIRBUS and the CAAC
June 2007
Memory (2)
Working memory (short term memory)
The mechanism to store encoded and transferred
information from sensory storage, need direct attention.
The only way to keep information in working memory is
by rehearsal.
Three types: visual, phonetic, semantic
Capacity of working memory: 7 ± 2 chunks
Searching working memory
The time to search through a set of memorized items
is a linear function of the item number.
Search time = (time to perceive) + (time to encode) +
(38 ms per item searching time) + (response time)
A project supported by AIRBUS and the CAAC
A project supported by AIRBUS and the CAAC
June 2007
Memory (3)
Long term memory
The mechanism to store semantically encoded
information.
To recall more information, it must be
analyzed, compared, and related to old
knowledge.
A project supported by AIRBUS and the CAAC
June 2007
Attention
Selective attention
Scan through several channels to perform a
single task.
Focused attention
To maintain attention on one channel of
information and not to be distracted by other
channels of information.
Divided attention
Separate attention to more than one task.
Sustained attention
To maintain attention and keep alert for a
prolonged period of time.
A project supported by AIRBUS and the CAAC
A project supported by AIRBUS and the CAAC
June 2007
Attention (2)
A project supported by AIRBUS and the CAAC
June 2007
Attention (3)
A project supported by AIRBUS and the CAAC
A project supported by AIRBUS and the CAAC
June 2007
Attention (4)
Cognitive resource model: A limited quantity of
mental resources is available for performing tasks.
Single resource model
Multiple resource model
A project supported by AIRBUS and the CAAC
June 2007
Mental workload
Concept of mental workload
A logical extension of the resource models of divided
attention.
Measurement of mental workload
Four broad categories
Primary task measures: Workload = Time required /
Time available
Secondary task measures
– Basic idea: measuring spare cognitive capacity/resource
Physiological measures
– Pupillary response, P300
Subjective measure Cooper
– Harper scale, SWAT (Subjective Workload Assessment
Technique) , NASA-TLX (NASA Task Load Index)
A project supported by AIRBUS and the CAAC
A project supported by AIRBUS and the CAAC
June 2007
Mental workload (2)
A project supported by AIRBUS and the CAAC
June 2007
Why and How Do People Have Errors
Human capacity’s limitation
a) Anthropometry
b) Auditory, Tactual, and Olfactory Displays
c) Visual
d) Process information
e) Make decision
A project supported by AIRBUS and the CAAC
A project supported by AIRBUS and the CAAC
June 2007
Decision making
Evaluate alternatives and select a course of action.
Problem solving skill
Fact-based thinking
Rule-based thinking
中国航空网 www.aero.cn
航空翻译 www.aviation.cn
本文链接地址：
AIRWORTHINESS AND FLIGHT STANDARDS(15)
